python-swiftclient/swiftclient/requests_compat.py
Aarni Koskela c09621eb42 Don't patch Requests globally on import
This also upgrades the Requests dependency to 2.4+ (released in 2014)
to avoid having to do version comparisons altogether.

Refs https://bugs.launchpad.net/python-swiftclient/+bug/1904551

Signed-off-by: Aarni Koskela <akx@iki.fi>
Change-Id: I58399f6c526b0b78462f31739c43076314ba9e76
2022-03-21 08:05:54 -07:00

58 lines
2.1 KiB
Python

# Copyright (c) 2010-2022 OpenStack, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import requests
from requests.sessions import merge_setting, merge_hooks
from requests.structures import CaseInsensitiveDict
class SwiftClientPreparedRequest(requests.PreparedRequest):
def prepare_headers(self, headers):
try:
return super().prepare_headers(headers)
except UnicodeError:
# If we got an unicode error from the superclass's prepare_headers,
# we had a non-spec-compliant non-ASCII header
# (e.g. an UTF-8 encoded Swift object metadata header).
# In that case, we just pass it through and hope nothing
# bad will happen from not following the HTTP spec.
self.headers = CaseInsensitiveDict(headers or {})
class SwiftClientRequestsSession(requests.Session):
def prepare_request(self, request):
# Close to the superclass's implementation,
# but no cookies or .netrc authentication overrides here.
p = SwiftClientPreparedRequest()
headers = merge_setting(
request.headers,
self.headers,
dict_class=CaseInsensitiveDict,
)
p.prepare(
method=request.method.upper(),
url=request.url,
files=request.files,
data=request.data,
json=request.json,
headers=headers,
params=merge_setting(request.params, self.params),
auth=merge_setting(request.auth, self.auth),
cookies=None,
hooks=merge_hooks(request.hooks, self.hooks),
)
return p